In terms of precipitation, rainfall in Copenhagen ranges from 0.8 - 2.8 inches per month. August is typically the wettest month, when rainfall can reach 2.8 in. February is typically the driest time to visit Copenhagen when rainfall is around 0.8 in.

If weather is an important factor for your trip to Copenhagen, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What is the cheapest time of day to fly from ISP to CPH?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip, New York to Copenhagen as you normally would.

Most accurate provider : When it comes to deals on Islip, New York-Copenhagen flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-Copenhagen flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-Copenhagen flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Islip, New York-Copenhagen flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-Copenhagen flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Islip to Copenhagen that include hotel bookings?

Yes. In addition to deals on Islip to Copenhagen flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Islip to Copenhagen?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Copenhagen.

Can I find deals for business class flights from Islip to Copenhagen?

Yes. Cheapflights offers flight deals from Islip to Copenhagen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$1,211+ Flights from Islip, NY to Copenhagen

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Islip to Copenhagen with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Islip to Copenhagen

Cheapest

Best

Cheapest flights from Islip to Copenhagen
Explore the most affordable flight options available from Islip to Copenhagen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2026.

Thu 4/98:36 pm

ISP

CPH

2 stops45h 09m

Multiple Airlines

Thu 4/161:25 pm

CPH

ISP

1 stop11h 19m

Multiple Airlines

Deal found 2/23

$1,211

Find flight deals from Islip to Copenhagen

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,211 (Kiwi.com)
Popular in	December
Cheapest in	September
Average price	$580

Provider with most accurate pricing for Islip Long Island-Kastrup Copenhagen flight deals.

Search Deals

Provider most trusted by Cheapflights users for Islip Long Island-Kastrup Copenhagen flights.

Search Deals

From Islip Long Island to Kastrup Copenhagen

Search Deals

Highest demand for flights based on searches. 2% potential increase in price ($14 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in February 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

IslipCopenhagen

ISP - CPH

ISPCPH

Islip Long Island

Thu 4/9

8:36 pm-11:45 pm

2 stops45h 09m

Kastrup Copenhagen

Thu 4/16

1:25 pm-6:44 pm

1 stop11h 19m

$1,211

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/23

Most accurate provider: When it comes to deals on Islip, New York-Copenhagen flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-Copenhagen flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-Copenhagen flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Islip, New York-Copenhagen flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-Copenhagen flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Islip to Copenhagen

Have a flexible travel schedule? Discover the best time to fly to Copenhagen from Islip with our price prediction graph.

ISP-CPH

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Islip to Copenhagen

What is the cheapest month to book a flight from Islip, New York to Copenhagen?

Currently, March is the cheapest month in which you can book a flight from Islip, New York to Copenhagen (average of $364). Flying from Islip, New York to Copenhagen in June is currently the most expensive (average of $524). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Can I find deals for flights from Islip to Copenhagen that include hotel bookings?
Yes. In addition to deals on Islip to Copenhagen flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Islip to Copenhagen?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Copenhagen.
Can I find deals for business class flights from Islip to Copenhagen?
Yes. Cheapflights offers flight deals from Islip to Copenhagen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Islip, New York to Copenhagen?
Currently, March is the cheapest month in which you can book a flight from Islip, New York to Copenhagen (average of $364). Flying from Islip, New York to Copenhagen in June is currently the most expensive (average of $524). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Kastrup

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Copenhagen flight routes

Flights by cabin class

Other flight options

Other flights from Islip

Popular flights

Alternative routes for Islip to Copenhagen

John F Kennedy Intl to Copenhagen flights

Newark to Copenhagen flights

Syracuse to Copenhagen flights

Buffalo to Copenhagen flights

LaGuardia to Billund flights

Albany to Copenhagen flights

John F Kennedy Intl to Billund flights

John F Kennedy Intl to Aalborg flights

Newark to Billund flights

White Plains to Copenhagen flights

John F Kennedy Intl to Aarhus flights

Newark to Aalborg flights

Newark to Aarhus flights

Albany to Billund flights

Stewart to Billund flights

Stewart to Copenhagen flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$1,211+ Cheap flights from Islip, NY (ISP) to Copenhagen (CPH)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Islip to Copenhagen with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Islip to Copenhagen

Cheapest flights from Islip to CopenhagenExplore the most affordable flight options available from Islip to Copenhagen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2026.

Explore the most affordable flight options available from Islip to Copenhagen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2026.

Best flights from Islip to CopenhagenDiscover carefully curated flight deals from Islip to Copenhagen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 23, 2026.

Discover carefully curated flight deals from Islip to Copenhagen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 23, 2026.

Find flight deals from Islip to Copenhagen

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Islip to Copenhagen that are best for you.

Best time to book a flight from Islip to Copenhagen

Have a flexible travel schedule? Discover the best time to fly to Copenhagen from Islip with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Islip to Copenhagen

What is the cheapest month to book a flight from Islip, New York to Copenhagen?

Related info for your journey

Find useful and relevant information for your journey from Islip to Copenhagen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Islip to Copenhagen that include hotel bookings?

How can I find direct flights from Islip to Copenhagen?

Can I find deals for business class flights from Islip to Copenhagen?

What is the cheapest month to book a flight from Islip, New York to Copenhagen?

Traveling to a place near Copenhagen?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Islip to Copenhagen

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Copenhagen by adding a car rental and/or hotel reservation to your travel itinerary.

Other flights to Copenhagen

Explore flights to Copenhagen departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 23, 2026.

Search flights from Islip to Copenhagen by cabin class

Find flights from Islip to Copenhagen, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Islip and Copenhagen flights

Browse other Islip and Copenhagen flight options. Last updated on February 23, 2026.

Other flights from Islip

Browse through other flights departing from Islip. Flights are based on user searches made on Cheapflights and were last updated on February 23, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Islip to Copenhagen
Explore the most affordable flight options available from Islip to Copenhagen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2026.

Best flights from Islip to Copenhagen
Discover carefully curated flight deals from Islip to Copenhagen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 23, 2026.